diff --git a/pandas_ods_reader/tools.py b/pandas_ods_reader/tools.py
index d039176..36bcf5f 100644
--- a/pandas_ods_reader/tools.py
+++ b/pandas_ods_reader/tools.py
@@ -2,18 +2,20 @@
 
 
 def ods_info(doc):
-    """Prints the number of sheets, their names, and number of rows and columns
-    """
-    print("Spreadsheet contains %d sheet(s)." % len(doc.sheets))
+    """Print the number of sheets, their names, and number of rows and columns"""
+    print("Spreadsheet contains {:d} sheet(s).".format(len(doc.sheets)))
     for sheet in doc.sheets:
-        print("-"*40)
-        print("   Sheet name : '%s'" % sheet.name)
-        print("Size of Sheet : (rows=%d, cols=%d)" % (
-            sheet.nrows(), sheet.ncols()))
+        print("-" * 40)
+        print("   Sheet name : '{}'".format(sheet.name))
+        print(
+            "Size of Sheet : (rows={:d}, cols={:d})".format(
+                sheet.nrows(), sheet.ncols()
+            )
+        )
 
 
 def sanitize_df(df):
-    """Drops empty rows and columns from the DataFrame and returns it"""
+    """Drop empty rows and columns from the DataFrame and returns it"""
     # Delete empty rows
     for i in df.index.tolist()[-1::-1]:
         if df.iloc[i].isna().all():